PCI: Skip id checking if no id is passed
authorYinghai Lu <yinghai@kernel.org>
Wed, 17 Nov 2010 20:10:40 +0000 (12:10 -0800)
committerJesse Barnes <jbarnes@virtuousgeek.org>
Thu, 23 Dec 2010 20:53:10 +0000 (12:53 -0800)
Will get warning when pci stub driver is built-in kenel like:
pci-stub: invalid id string ""

So stop early if no id is passed.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
drivers/pci/pci-stub.c

index f7b68ca6cc98301d0d4d13bdc43d7af8be6f1ab4..4c0336b31cafb5fa3b0c00d51b9f7ab03bbb5c8c 100644 (file)
@@ -47,6 +47,10 @@ static int __init pci_stub_init(void)
        if (rc)
                return rc;
 
+       /* no ids passed actually */
+       if (ids[0] == '\0')
+               return 0;
+
        /* add ids specified in the module parameter */
        p = ids;
        while ((id = strsep(&p, ","))) {